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No. 541,161. Patented June 18, 1895.

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Patented June 18,1895.

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UNITED ST TES PAT NT OFFICE.

THOMAS C. HARGRAVE, OF MINNEAPOLIS, MINNESOTA, 'ASSIGNOR TO THE HARGRAVEMATRIXMACHlNE COMPANY, OF SAME PLACE.

MATRIX-MAKING MACHINE-t.

SPECIFICATION forming part of Letters Patent No. 541,161, dated June 18,1895.

Application filed December 4, Serial No. 530,821. I (No model.)

To all whom it may concern: 7

Be it known that I, THOMAS C. HARGRAVE, a citizen of the United States,residing at Min neapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements in aMachine for the Production of Print or Printing Surfaces; and 1 dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same. 7

My invention has for its object to provide an improved machine for theproduction of print or printing surfaces. The mechanism is adapted toassemble dies and compressible spaces into a'comtnon line of assembly,compress the same into a justified line, take an impression therefrom,and distribute or return the released and assembled dies into theirnormal or initial positions. In so far as the assembling anddistributing mechanisms are concerned, the dies employed may be eithermale or female; and the impression mechanism employed is adapted to holdand operate any suitable strip ofimpression ma terial. Hence, with themachine as organized and herein disclosed,with the use of the male dies,there may be produced, either a printed 0 impression, or a matrix, fromwhichprinting surfaces may be subsequently cast. My machine, however,was especially designed for the production of justified matrices in asuitable matrix material, from whichliuotypes or stereotype plates maybe subsequently cast; and in the accompanying drawings, I have shown thesame as organized for this purpose. 7 1

From the foregoing, it will also be under- 0 stood, that my machine isof that variety of matrix machines, wherein the whole line of dies arefirst assembled, and then impressed, with a single action,into thematrix material. This, of course, gives an opportunity forjusti- 5fication, bythe use of compressible spacers; and eliminates many of thedifficulties, which arealwaysexperiencedin attemptingto secure goodmatrices from the action of individual dies impressed in succession. 5cThe novel features of my machine will appear from the detaileddescription hereinafter given, and will hedefined in the claims.

The accompanying drawiugsillustrate my invention, wherein like notationsrefer to like. parts throughout the several views. 7 p 5 5 Figure 1 isafront elevation of the machine with some parts broken away. Directionswill be taken with respect to the position of an observer facing thisview. Fig. 2 is a plan viewvof the top partof the machine, some of theunderneath parts being omitted. Fig. 3 is a view of the machine chieflyin right end elevation, but partly in section on theline X X of Fig. 1,and with some parts broken... away. Fig. 4 is a view of the machinechiefly in left end elevation ,but partly in section on the line X X ofFig. 1, some parts being removed. Fig. 5 is a detail chiefiyin plan, butpartly in horizontal section, showing the relation of the transversedriving-shaft to the longitudi- 7o nal cam-bearing counter-shaftd riventhereby.

Fig. 6 is a detail in plan, showing the relation of the cam-bearingcounter-shaft to the table-controlling camrthereon and/the trip for thedriving connection between the shaft and the cam. Fig. 7-is a detail ofthe triplever shown in Fig. 6. Fig. Sis avertical section on the line XX of Fig. 6, looking from the left toward the right with respect toFig. 1. Fig.9 isavertical section through 86 the pivoted table on theline X? X of Fig. 2, looking from the left, with some parts broken awayand others removed. Fig. 10 is a detail in vertical, section through thestall-board which holds the die ends of the die-oarriers in their normalor idle position. Fig. 11 is a similar view, taken at a diiferentpoint,for showing the cam-lever and spring for operating the stall-gate. Fig.12 is a plan view of a part of the stall-gate, detached. Fig. 13 is ahorizontal section on the line X X of Fig. 10. Fig. lat is a skeletonview, chiefly in plan, but partly in section, with some portions brokenaway and others removed, for showing the relation of the assembling-beltto the 5 compression-box, into which the selected dies areassembled.Fig. 15 is a left-end elevation of the compression-box, shown in itsrelation to a part of the assembling-belt. Fig. 16 is a' detail of oneof the parts of the compressionbox. Fig. 17 is an inside elevationlooking outward at the com pression-box and the assembled line ofdie-carriers, with some parts broken away and others removed. Fig. 18 isasection on the line X X of Fig. 17. Fig. 19 is a detail in perspective,showing the impression-material guide on the platen. Fig. 20 is avertical cross-section of the machine on the line X X of Figs. 21 and22, looking from the left, showing the pivoted tablein its turned-downposition in full lines and at a certain intermediate or pausing positionin dotted lines for illustrating the distributing actions. part of themachine with the pivoted table turned down into its distributingposition or at an angle of ninety degrees to its horizontal orassembling position; and Fig. 22 is a rear View of a part of the machinewhen the pivoted table is turned down into itsdistributing position, asshown in Fig.2l, with some parts broken away and others shown in section.

For convenience, the following classification of reference letters willbe observed, to. wit:

a and its powers, a a &c., will be used to denote the parts of the fixedor main frame; I) and its powers, for the constantly running shaft,cams, &c.; c and its powers, for the parts of the pivoted table, thedie-carriers and the assembling and distributing devices car-. ried onthe table; fand its powers, for the parts of the compression-box, &c.

It may also be here noted, that in the following detailed description,the parts of the machine .will be specified, not necessarily in theorder of their operation, but in that order thought to be most conduciveto ease of un derstanding and brevity of statement.

The mainframe.(See Figs. 1, 2, 3 and 4.) The main frame may be of anysuitable construction; and is shown as composed of ver tical endcastings a, tied together by horizontal rods a'and a top-bar a.connecting the up.- per ends of the said end castings at the front only.This arrangement affords the necessary clearance between the said endcastings of the frame, for the pivotal movement of the die carriertable, as will presently more fully appear. To the body portions of themain frame are secured various other fixed parts, such as verticalbearing plates a and a fixed to the end castings, and the standard arising from the right hand corner of the front cross-bar a Theconstantly running shafts, cams, &"c. See Figs. 1 to 8'inclusive. Insuitable fixed pillow-block bearings 1), beyond the left end of machineframe, as shown, is mounted a transverse counter-shaft Z9, having apulley Z1 engaged by a belt b which is kept in constant motion from 'asource not shown. The

shaft 1), is provided with a-worm b, which engages with a worm gear bfixed toa countershaft b which extends lengthwise of the machine and ismounted, as shown, in suitable fixed pillow-block bearings b Theshaft 1) Fig. 21 is a plan view of the top has also fixed thereto arelatively largepulley b which is connected, by belt I)", with a pulley17 journaled in suitable bearings b,

at the upper right hand corner and on theinside of the main frame, asshown in Figs. 1 and 3; and this belt b is subject to a belt tightenerZ2 adjustably secured to the left end casting of the main frame. Thisbelt 12 at the point where it passes over the pulley b constitutes afriction driver for the assembling belt, as will later morefuily appear.On the countershaft U are located, at the left, two cams Z1 b, on acommon hub 19 which is adjustably secured to the shaft b bya jamscrew Z7or in any other suitable way. On the said shaft 1), between the framecastings a, is also fixed a cam b" with propeller blade cam surfaces I1The said cams 12 b b" are used in the distributing action, as will latermore fully appear. Near the rightend of the shaft b is located a camdriving disk b, which is fixed to the shaft b and is provided withshoulders or steps b on its periphery. Alongside of the driving disk band loose on the shaft b is located a large cam I) having a profile studb, which carries a pair of gravity r acting independent pivoted pawls band b, which serve to effect the driving connection with the disk bgages with the periphery of the disk I); and the pawl b, which is thedriving member, may be made to engage therewith, at will. The drivingpawl b has alateral lug b which is normally engaged by the lower arm bof a pivoted bell-crank lever b b, the long arm I) of which extends toand is connected with a vertically movable hand slide b b which embracesand is movable upon a vertical guide I) fixed to the front of the mainframe. The angular end of the lower arm I) of said bell-crank trip-leverworks through a slot b in the bar a fixed to the right end framecastinga. Hence, when the trip is .in its lowermost position, the driving pawlb will be held out of engagement with the driv ing disk Z2 butwhen thetrip leveris raised, the said pawl Z1 will fall, by gravity, onto theperiphery of the constantly running driving disk b and as soon as itengages with any one of the shoulders 17 of said disk, the cam b will belocked to the disk and made to turn therewith, for one completerevolution and will, then, be unlocked from the disk by the lower arm 12of the trip-lever which will engage the lateral lug 17 on the drivingpawl b and lift the same away from the driving disk I). The purpose ofthe pawl 12 is to prevent the cam 17 from moving ahead of the disk b atany time, when the pawl 12 is in driving engagement with the said disk.The spaces between any pair of thedisk lugs b are such that whenever thedriving pawl b is in engagement with the face of one of said logs, thepawl b will be in engagement, or direc-tly behind the back of the nextadjacent forward member of said lugs.

Hence, the loose cam 17 can never fall for- The pawl 12 always en ward,with respect to the driving disk b and it will never fall backward, withrespect to said disk, when the driving pawl 13 is unclutched therefrom,because the strain, which will, at that time be on the cam, will beradial to the center of the shaft b, as will presently more fullyappear, and may be seen on reference to Fig. 3. The cam 12 is alwaysengaged by a roller b, on a strong cam-lever 71 having its lower endpivoted to the main frame, as shown in Fig. 3, and provided with asector gear 6 at its upper end, for holding the pivoted table 0 c 0850., and controlling the movement of the same, as will presently morefully appear.

Before dropping consideration of the cam Z2 it should be noted, that ithas, near the heel of the cam, a short surface 12 which is concentricwith the shaft b and hence, for a short part of the said cams travel,the camlever b will receive no pivotal movement. This produces astationary point or interval of pause for the pivoted table, on itsdownward travel. The importance of this will appear when considering thedistributing action.

The pivoted table, the dies, and assembling devices.-See Figs. 1, 2, 3,4 and 9 to 19 inclusive. The so-called pivoted table 0 c, &c., abovereferred to, is in reality, a skeletonlike frame, but has been called atable, on account of its functions and for distinction, with respect tothe main or fixed frame of the machine. Ail the parts of this frame ortable are supported directly or indirectly from a trunnion-shaft c,journaled in bearings on the top of the main frame, and having, atitsright end, a sector-gear c rigid with the said shaft and in engagementwith the sector-gear 19 on the cam-lever Z9 which is under the controlof the cam Z1 hitherto noted. The said cam b when idle, holds the tablehorizontal or in its assembling position. Angular like end brackets oare fixed to the said trunnion shaft 0, points downward, and haveattached to their upper ends, transverse endbars 0 connected by a rearside-rail or bar a and top-rails or bars 0? 0 On the shaft 0 are fixed apair of two-armed brackets c 0 of which arms, the members a project tothe front of the machine and support a bottom rail or bar c and, by theaid of bracketirons a also support a pair of vertical posts 0 whichextend to and are rigidly connected with the end rails or bars 0 of thetable. By the angular end-brackets 0 the posts 0 the bottom-bar c andthe bearing brackets 0 all the fixed parts of the pivoted table, aresupported from the trunnion shaft 0 and held rigid therewith and witheach other. The vertical parts 0 of the brackets c 0 form insidebearings for roller or drum-shafts c the rear ends of which arejournaled in bearing pieces 0 depending from the rear rail 0 of thetable. On the said shafts e are fixed rollers or drums 0 on which aree11- compassed and traversed by an assembling belt 0 Onaccount of the}way in which the bearings c are obtained for the .frontportions of thedrum-shaft, the drums e are in two sections each and the belt 0 is alsoin two sections; and the bearingsc have formed: integral therewith afilling piece 0 which rises therefrom to thelevel of the top face of thebelt. If the front bearings for the drum shafts were obtained in such away as to be at the front ends of the shafts, the assembling belt mightbe, and preferably would be,

a single transversely continuous belt.

When the pivoted'table is horizontal, the assembling belt 0 will behorizontal and the under surface of the same, at the right hand frontcorner thereof, will be in frictional contact with the constantlyrunning driving belt b at the point where it passes over the pulley band hence, by this friction driver 19 on the main frame, the assemblingbelt 0 will receive motion whenever the table is in its horizontal orassembling position. I This motion of the assembling belt 0 is at a highgo rate of speed. In virtue of the relation of the friction driver orparts 11 and la on themain frame, to the assembling belt 0 on thepivoted table, the said belt 0 will only receive motion when inassembling position; 5

or otherwise stated, the assembling belt a will stop running, theinstant that the table begins to turn downward.

At the front of the assembling belt and substautially at right anglesthereto, are located [Co a series of die carrier guides c, which, asshown, are in the form of rods secured, at their upper ends, to thefront bar 0 of the table, and, at their lower ends, to the bottom bar 0of the table. These guide-rods e are, in number, sufficient for all theditferent sets of font elements or die-carriers, spacers, &c., which areused in the machine; and the said guide-rods e are substantiallyparallel with each other and stand substantially in a com- 1'10 monplane extending in the direction of the travel of the assembling beltand cutting the plane of said belt. To the said guides e are pivoted aseries of sets of die-carriers 0 0 c of which parts, 0 are thecarrier-stems, r15

0 are the pivot-lugs and 0 are the dies. The pivot-lugs 0 of thedie-carriers are offset from the carrier-stems 0 as best shown in Fig.14,

in order to permit the carriers to' be swung into a common planeparallel with and adjacent to the plane of the carrier-guides 0 The dies0 are also offset from their carrier stems 0 in order to permit the feetof the dies to be engaged by a banking and clampingplate of thecompression box ff, &c., :25 when in the line of assembly, as willhereinafter more fully appear. The die-carriers and dies are, in numberof sets, equal to all the elements of a complete font, for upper andlowercase letters and numbers, punctua 15o tion-marks, &c.; and asufficient number of compressible or spring spacers e are also 1provided, for use with the other elementsof the font, and are mounted onthe same kind assembling belt of pivoted carrier-stems e as the dies 0Each set of dies or other elements of the font contain as manyduplicates or members of the same element, as may be necessary toprovide for any line of composition. As the ma chine is organized,provision is made for ten elements in a set. Each set of the carriers 0have a separate number of the guides 0 for their pivoted ends or parts;and the carrier-stems 0 are of unequal length, as best shown in Figs.14: and 17, in order to bring the dies 0 into a common line of assembly,notwithstanding the fact that the carrier guide-rods 0 are located atdifferent distances from the line of assembly.

By reference to Figs. 1 and 9, it will be seen that the guides c for thedie carriers 0 eX- tend both above and below the top face of the Thecompression-box f f, &c., for the selected and assembled dies, islocated on the main or fixed frame of the machine below the top level ofthe assembling belt 0 at the front side of the same, and substantiallyin the plane of and parallel to the guides 0 as may be best seen onreference to Figs. 1 and 14. The structure of said compression-box willbe described later on.

The die carriers 0 are all normally held above the assembling belt 0 asshown in Fig. 9, when the pivoted table is in its horizontal orassembling position. The said carriers are thus held in their idle ornormal position by suitable detents comprising a stall gate 0 holding upthe die ends of the carriers and releasing springcatches c, holding upthe pivot-lug ends of the carriers.

The releasing spring catches 0 normally underreach the lowermost membersof the sets of die carriers. For co-operation with the releasing springcatches c corresponding cutoff spring catches 0 are provided; whichcutoff catches e normally stand clear ofthe die carriers but may beforced inward, so as to engage under the next to the lowermost orpenultimate members of the sets of die carriers. The cutoff springcatches e are provided with cam-lugs 0 and the releasing catches c areprovided with cam-lugs 0 The cooperation of the spring-catches serve asan escapement feed for the type-carriers. Spring up-held pivotedkey-levers e are provided for every set of the die carriers or fontelements; and each of these key-levers is provided, at is forward end,with a downwardly projecting cam -lng c of foot-like shape at its lowerend, for operation on the spring catches c and 0 Under the down strokeof any key the toe of the cam-foot 0 acts first, on the lug e of thecut-off catch 0 to force the said cut-off under the next to thelowermost or penultimate member of that set of carriers and the heel ofthe cam-foot 0 acts, next, on the lug 0 of the releasing springcatch cto force the same outward and re lease the lowermost member of the set.of car riers controlled by that particular'key, after the cut-ofi catch0 has been forced inward,

where it will hold up all the other carriers of that set until the upstroke of the key. and the sufficient to pull the die end of the guidea, be-

fore the pivot lug thereof will cramp and bind on its released carrieroff from the stall gate 0. Hence, whenever one of the carriers 0 is thusreleased, by the down stroke of one of th'ekeylevers, it will instantlyfall by gravity onto the top of the assembling belt; and inasmuch as itsforward end is pivoted to its guide 0 and the die end is free, the dieend of the released carrier will be carried forward by the belt and beswung off from the side of the same, when carried to its limit, so as tocome into the assemblingplane, as shown in Fig. 14:. As quick as the dieend of the released carrier is thus swung 0E from the belt, the

whole carrier may fall downward, parallel with its guide 0 into the lineof assembly of the compression-box ff, &c., as shown in Figs. 14, 17 and18. In its downward movement below the level of the belt, the releaseddie-carrier is guided, at its free or die end, by

a stationary vertical guide rising from a fixed part of thecompression-box f f as best shown in Figs. 14; and 15. In this way, allthe dies and spaces selected and released, by the operator, at thekey-board, are brought into a common line of assembly, at the comductive to distinctness, to describe the addi tional devices whichco-operate with the pivoted table for distribution or return of thereleased and assembled line of die carriers, back into their initial oridle positions. For present purposes, therefore, let it be assumed, thatthe impression from the assembled line of dies has been taken and thatthe said assembled die carriers stand free from the clamps of thecompression-box and ready to be distributed.

The distributing devices-See Figs. 1 to 4 and 9 to 22. Theverticallymovable hand slide Z7 b at the front of the machine,whiehoperates the trip lever Z2 I), for throwing the table controlling cam binto engagement with the constantly running driving disk b", as hithertonoted, bears at its upper end against a die carrier lifting andreturning bar 0 This bar is 0 is mounted'for sliding movement on the diecarrier guide rods 0 and also has attached thereto, by bracket irons c,bearing sleeves 0 which ride on the clamped together in the compression-box and the impression taken therefrom, said bar 0 may beusedfirst to lift the assembled die carriers to a point above the levelof the top of the belt, before the table begins to turn, and, finally,to return the pivoted ends of the same into their distributed or idlepositions on their guide rods 0 as will later appear. The first actionor vertical lift of the bar 0 is effected by the hand slide 19 Z9 beforenoted. The lifting bar 0 has stud and slot connection, as shown at 0Fig. 1, with the inner end of a cam lever 0 pivoted to the left endbracket of the table, and having a segmental arm 0 adapted to be engagedand acted upon by a lateral pin on a cam-lever 0 at the proper time, inthe downward movement of the pivoted table. The cam lever 0 is pivotedto a stud c and is subject to the action of a spring 0 which normallyholds the lower end of said cam lever against the cam b on the left endof the shaft o Onthe downward movement of the pivoted table, thesegmental arm 0 meets the'pin 0 0f the cam lever 0 before the high partof the cam 12 begins to act on said lever; and the pivotal motion of thetable will serve to cause the parts 0 and 0 to rock the lever C35 andmove the lifting and returning bar 0 nearly but not quite to the limitof its upward or distributing stroke on the carrier guide The releasingspring catches 0 depend from a common support 0 which is pivoted to thetable frame, as shown in Figs. 1 and 9, and is normally held in itsinnermost position by springs 0 but said pivoted spring catch support 0has at its left corner a projecting arm 0 which, at the proper time inthe downward movement of the table, strikes a camlug or post rising fromthe machine frame; and under the action of said parts 0 and 0 thesupport 0 and the releasing spring catches c will be thrown away fromthe carriergnides 0 so as to afford clearance forthe upward passage ofthe lowermost die carrier to a point above the normal position of saidspring catches 0 Just after the pivoted support 0" and its springcatches 0 are thus thrown outward, one of the high parts of the cam bacts on the lower end of the cam lever e and through the parts e c 0completes the distributing stroke of the lifting and returning bar 0thereby returning the pivoted ends of the die carriers to initial oridle position on their guide rods 0 and as quick as the table startsback, the arm 0 will leave the lug c and'permit the springs 0 to throwthe releasing catch support 0 and catches 0 back into their normalposition so as to hold the sets of die carriers in their normal or idlepositions, under the further upward movement of the table and untilagain released by the key actions. The final part of the distributingstroke of the lifting bar 0 was made against a stifi spring 0 as shownin Figs. 1 and 21.; which spring 0 serves to throw said bar down out ofthe path of the closing catch 0 as quick as permitted by the cam Z1 Someother parts, besides 7 those above named, co-operate in returning ordistributing the pivot lug ends of the die carriers; but

they may be best noted later on. It may be here added, however, that aspring clamp finger 0 rising from the front lower rail of the tableserves to hold the lifting bar 0 from falling, when raised by hand to apoint above the level of the assembling belt. After the .table has beenreturned to its normal or assembling position the lifting bar 0 must belowered to its limit by hand, before beginning-to assemble the nextline.

Having regard to the return of the die ends of the die carriers,attention may first be directed to the stalls entrance to which iscontrolled by the stall gate 0 hitherto noted, as shown in Figs. 2, 4, 9to 13 and 20 and 22. The said stalls e are formed by partition blades 0driven into what may be called the stall-body plate 0 which is providedwith a cap-plate e extending forward over the upper ends of the stallsa. The stall body plate .0 and the cap-plate 0 extend diagonally acrossthe top of the pivoted table and are rigidly secured to, the front andrear rails thereof, as best shown in Fig. 2. Angle-irons e are fixed tothe back of the stall body plate, with the lower arms of which engagekeepers 0 fixed to the stall gate 0 as shown in Fig. 10. The stall gate0 is also provided with two sets of lugs e which are engaged by thelower arms of pivoted levers 0 which are mounted on and rigid with ashaft 0 which is journa ed in bearings fixed to the back of the stall-body plate a". The levers c and shafts are subject to the action of aspring or springs 0 which tend to throw the stall gate 0 toward thefront so as to close the lower ends or months of the stalls 0 One of thelevers 0 is, however, subject to an arm 0 on a rock-shaft 0 mounted insuitable bearings 0 as best shown in Fig. 22, and provided at its lefthand end with a cam-lever 0 which rides on .the cam b fixed to the shaft17 The cam b willimpart to the lever e and the parts 0 and c a constantrocking motion. As the table nears the lowermost limit of its downwardmovement, the upper or free arm of the stall gate lever 0 will come intothe path of the said cam rocked part c and, thereby, the stall gate willbe thrown to and be held in its rearmost position c This opens the lowerends or months of the stalls 0 and the die ends of the die carriers 0having been broughtinto line with the mouths of said stalls, by meanswhich will presently be noted, they will under the action of gravityenter said open stalls at the very final limit of the tables downwardmovement. As quick as the table starts back upward, the gate lever 0will move away-from the cam rocked arm a, and the spring 0 will restorethe stall gate to its closed position and hold the die ends of thecarriers in their respective stalls until again released by the keyactions.

Near the right hand front, corner of the table frame, is mounted anangular piece 0 which, on account of its function, may be.

called the temporary retainer, for the diecarriers, inasmuch as itserves to prevent any pivotal motion of the die carriers, during thetime that the said carriers are being lifted above the level of thebelt, and during the time that the table is being turned over to thepoint where it has a period of pause. The said retainer may be best seenin Figs. 1,2, 3, 14, 17, 18 and 21.. The horizontal part of the saidretainer 0 is mounted in keepers on the table-frame, and is undertension from a spring 0 as shown best in Fig. 2, to move inward to itslimit; but when the table is in its horizontal or assembling position,the outer end of the horizontal part of said retainer 0 which is hookshaped on its under edge, will be engaged by a small cam 0 which ismounted for sliding movement on the standard a of the fixed frame andcarried on the upper end of the vertical arm a of levers 0 0 which ispivoted to a bracket c fixed to the main frame, as shown in Fig. l, andhas its horizontal arm 0 connected to the hand slide 12 3 b at the frontof the machine. When the said cam e is in its uppermost position, whereit is thrown before the table returns to its horizontal or assemblingposition,the hooked end of the horizontal part of the retainer 0 will,under the upward movement of the table, engage the said cam e and drawthe said retainer e outward against the tension of its spring 0 and thevertical or active part of said retainer 0 will then stand, as shown inFigs. 1, 2, 14 and 18, at a point out of the path of the die carriers,when swinging into the line of assembly; but, when the hand slide h I)is lifted to start the distributing action, the cam 0 will be drawn downaway from the hooked end of the retainer 0 and the spring 0 willinstantly throw the said guide inward, so as to cause the vertical partof the same, to assume the position shown in dottedlines in Fig. 18, andstand at a pointdirectly opposite the die ends of the carriers c Hence,when the assembled die carriers are lifted above the belt, and the tablebegins to turn over, the die ends of the carriers will be caught andheld by said retainer 0 from any except a very limited pivotalmovementon their guide rods 0". WVhen the table reaches the proper point, in itsdown- I ward movement, which is just about at the place where it beginsto stand still, for a short interval, the hook end of the retainer-0will be engaged by a segmental cam a, rising from the right hand rearcorner of the machine frame, as best shown in Figs. 2, 3 and 21; and thesaid retaining guide will, there by, be pulled out from under the dieends of the said carriers 0 and will be held, in that position, duringthe remainder of the downward movement of the table. When the die endsof the carriers'c are thus released from the retainer 0 they will befree for pivotal movement on their guides a, under the action ofgravity; and owing to the position of w the table, which will then benearly turned over, the said die carriers 0 will assume a positioncrosswise of the assembling belt and substantially at right angles totheir guides tends diagonally across thepivoted table, as

best shown in Figs. 2, 3,20 and 22, with its lower edge just clearingthe top level of the assembling belt. has its ends mounted for slidingmovement on suitable guide rods e extending lengthwis of the tableframe. A link 0 connects the rear end of the said abutment board withthe long arm of a bell crank cam lever 0 0 pivoted to the table frame asshown at c". The spring 0 as shown, connects the long arm 0 of said bellcrank lever with the right end of the table frame and normal'y holds theabutment board 0 at the extreme right hand of itsmovement, .or in thepositionshown in Fig. 2, where it will stand when the table ishorizontal or in its assembling position, entirely out of the path ofthe die carriers, when under the action 9f the assembling belt. Thelower arm 0 of the said bell crank lever 0 0 has a roller a"; and, atthe proper time, in the downward movement of the table, the said roller0 will engage one of the propeller blades or cam surfaces 1; of theconstantly running cam b; and,thereby, the said abutment board a will bethrown toward the left, lengthwise of the assembling belt, against thetension of the spring 0". This leftward movement of the abutment board 0begins at the proper time to bring the abutment board in the properposition, for co-operation with the assembling belt,

at the time just after the die ends of the carriers are released fromthe retainer 0 and are caught by the belt, or when in the This abutmentboard 0" tions, to assemble another line.

position shown in dotted lines in Fig. 20. The movement of the abutmentboard then continues toward the left, during and after the interval whenthe table is standing stationary, and will move all the die carriersrequiring distribution to a point where the die ends of the same will bedirectly in line with their respective stalls e Afixed stop-arm 0 limitsthe leftward movement of the die carriers 0. At or about the same timethat the abutment board 0 brings the dies into line with the stallmouths, or directly thereafter,under the further downward movement ofthe table, the stall gate 0 is thrown into its open position, by themeans hitherto noted, and the pivoted plate carrying the releasingcatches 0 is thrown outward, by the means hitherto noted; and clearanceis, thereby, afforded, so as to permit the die ends of the carriers toenter their respective stalls 0, under the action of gravity at-thefinal downward step of the tables movement, and to permit the forward orpivoted ends of the diecarriers to be thrown into their final ordistributed position, on their respective guide 0 by the lifting andreturning bar 0 as hitherto noted. As quick as the table begins toreturn upward, the stall-gate 0 and the releasing detents 0 assume theirnormal positions, so as to hold all the die carriers in theirdistributed or idle initial positions, as hitherto noted. On thecontinued movement of the cam b, the pivoted table will be returned toits horizontal position and all the parts carried thereby will assumetheir normal positions, ready for use, under the key ac- Before action,for the next line, is begun, however, the lifting and returning bar 0must be thrown down by hand to its lowermost limit, as hitherto noted.

The quest ion may arise in the readers mind, as to what prevents theentire sets of die-carriers, which were left unused in their idle ornormal positions, falling therefrom at the time that the releasingdetents 0 are all thrown outward away from the lowermost members of saidcarriers; and if such a question has arisen, the answer will be found byreference to Fig. 20, wherein it will be seen that the said die-carriersare then substantially vertical and their guide-rods 0 substantiallyhorizontal, so that there is no tendency of the carriers to move awayfrom their initial or distributed position.

The pivoted table is turned up by the cam Z1 against a fixed stop 0 Thecompression-box or line holding and impressing devices-See Figs. 1, 2and 14 to 20 inclusive. Returning now to the consideration of thecompression-box, or devices for clamping the assembled dies togetherinto a justified line and taking an impression therefrom, it may befirst noted that the fixed or body plate f of the compression'box, is

rigidly secured to the front rail a of the fixed or main frame of themachine, as best shown.

in Figs. 1 and 17. This fixed plate f is provided on its face withbearing-lugs f, in which is journaled a hand operated rockshaftfiprovided with a hand-leverf This shaft f has various cams thereon,which will be noted, in connection with the parts operated thereby. Inbearing-lugs f projecting from the left end of the fixed platef, isjournaled a pivoted clamping platef for engaging with the feet of theassembled dies and afford a banking surface for the same. The said plateis provided with a cam-lever arm f which extends outward toward thefront and is subject to the action of a spring f and a profile cam f onthe hand-shaft f The spring f normally holds the said clamping plate f,in the position shown in Fig. let; but, when the hand-shaftf is broughtinto action the cam f will force the said clamping plate f into theposition shown in Fig. 18. To bearing-lugs f depending from the left endof the fixed plate f, is pivoted a bell-crank camleverf the inner arm ofwhich has pivoted thereto a clamping plate f, for engagement; with theinner side of the line of assembled dies and clamping the same againstthe front side banking surfaces of the fixed plate f. The forward arm ofthe bell-crank lever f is provided with a rollerf which is subject tothe action of a cam f on the shaftf for producing the clamping action ofthe plate f. The said cam-lever f is subject to the action of a springf, which normally holds the same in the position shown in Figs. 14 and15, when the dies are being assembled. To the bell-crank lever f isattached the lower end of a vertical rod f which passes up through apart of the fixed platef, and has attached to its upper end a clampingjaw f which is normally held in its uppermost position by the lever f asshown in Fig. 15. The said jaw f is under tension from aspring f ,-tomove toward the right into a position directly over the upper end of theassembled line of dies; but is also subject to the action of avertically movable cam-rod f, as best shown in Figs. 14 and 16. Thecam-rod f is prevented from turning in its seat by a lateral stud fthereon, engaging a groove'f in the rod seat. The curved upper end ofthe rod f projects into the path of a stud-arm f, on the jaw-head fwhereby, when the rod f is drawn down and held in itslowermost.position, the clamping jaw will be held as shown in Fig. 14 out of thepath of the dies, when moving into the line of assembly. The lower endof the cam-rodf is provided with a lateral arm which is engaged by astud f on the hand shaft f when the said shaft is held in its normalposition, as shown in Fig. 14. The said shaft f is thus held in itsnormal position, by a band spring f, one end of which is attached to thefixed platefor some other rigid part of the frame, and the other end ofwhich is attached to the said shaft. Then the shaftf is rocked downward,as required for the compressing action, the band-spring IIO f is setunder tension and will instantly return the said shaft toits normalposition and hold the same there, as shown in Fig. 14, thereby holdingthe cam-rod f in the position shown in Figs. 14 and 16. When thehand-lever f is turned downward, the lug f will turn upward, away fromthe arm f, and permit the cam-rod f to be thrown upward into an idleposition. by a'spriugf encircling the same as shown in Fig. 16; and whenthat occurs,-the spring f becomes active to draw the clamping-jaw ftoward the right, so as to stand directly overt'ne top of the assembledline of dies; and hence, on the further downward movement of thehand-leverf the bell-crank cam-lever f will become operative to drawdownward the clamping-jaw f against the top member of the assembled diesand compressible spacers, and will serve ito compress the same togetherinto a justified ine.

Having regard to the timing of the clamping actions, obtainedrespectively, from the die feet clamping or banking plate f the endclamping jaw f and the side clamping plate f, the clamp f operates firstand insures the alignment of the dies, and the members f and f movetogether, under the control of the common cam f and bell-crank lever fbut the end clamp f clamps slightly in advance of the side clamp f, soas to compress the assembled dies and spacers into the justified line,before the plate f reaches its final clamping position. When all thesaid clampsf f f are in their final clamping positions, the parts willappear, as shown in Fig. 18-, and the assembled line of dies and spacerswill be held rigid with thefixed part of the compression-box. Aplaten fis mounted, for sliding movement, between horizontal guides f on theback of the fixed plate f of the compression-box. A toggle-lever 7connects the right end of the said f which underreaches the toggle f andserves, when the hand-lever f is thrown downward, to raise the centerjointof the toggle and force the platen f toward the right, and bringthe strip of matrix material f against the faces of the justified andrigidly held line of dies, thereby producingthe matrix in the saidstrip. The said strip f runs through a flanged guide-clipf fixed to theleft end of the platen, and traverses flanged guide wheels f and f asshown bestin Fig. 17. The said strip f is held under friction, againstthe face of the lower feed-wheelf by a light pressure roller f mountedin spring bearings fate.

As the feed devices are here shown, the lower wheel f is positivelydriven in the direction shown by the arrows, while the upper wheel facts simply as an idler. Hence, the strip f is, as shown, fed downward.The

wheel f is provided, on its projecting front journal,with a ratchetwheel f rigid with the said journal; andon the outer end of the saidjournal is pivoted a driving lever f,-

having a driving pawlf for engaging with the teeth of the said ratchet.

ratchet) wherever fed by the driving pawl f. The left end of thepawl-lever f isconnected by a coiled spring f to a fixed lllt! f and theright end of the said leverf has connected thereto a cord or otherflexible connection f, which passes down over a guide-sheave f, and thenupward to a lug f' on the table frame, as shown in Fig. 3.

A lock-pawl f pivoted to the frame plate a holds the The feeding stroketo the said pawl bearing under tension, every time that the pivotedtable is raised upward into its horizontal or assembling position; and,whenever the table is turned downward, the cord f will become slack andpermit the spring f to operate the pawl and ratchet,so as to turn thefeed-wheel f one step. There is nothing to hinder the feed of the saidstrip f 'at said time, inasmuch as the platen f will have been movedtoward the right into its idle or normal position, before the tablebegins to turn. The form of feed mechanism shown in the drawings, abovedescribed, has been shown simply for purposes of illustration. Inpractice, I would use a feed which fed with a positive action, insteadof the spring action above noted. In practice, also, provision would bemade for supplying the strip j and for taking care of the completedmatrix. The strip f may be of lead, paper,or of any other suitablematerial. I preferably employastrip of Ice paper, which is of a specialcomposition,best

adapted, according to my experience, for matrix purposes. This completesthe consideration of the compression-box and the parts for taking theimpression from the assembled dies.

The distributing devices, for the return of the assembled dies to theirdistributed or normal idle position on the pivoted table, have alreadybeen fully considered.

The general operation.-All the parts of my I ls machine have now beenspecified, in detail,

and the actions of the respective groups of mechanism have been tracedin connection with the detailed description. It may, however, addfurther distinctness, to summarize the general actions of the machine,which may be briefly done as followsz-When the pivoted table is in itshorizontal or assembling position, as shown in Figs. 1,2, 3 and 4, theassembling belt will be in rapid motion; and, by operating thekey-board, exactly as on a typewriting machine, the line of dies andspacers may be selected, released and brought into the common line ofassembly at the compression-box. The operator will then throw down thehand-lever f on the handshaft f at the compression-box; which actionwill align and clamp the assembled dies and spacers rigidly togetherinto a justified line and take theimpression therefrom; and when thesaid lever is released, the assembled dies and spacers will again befree from the clamps and ready for distribution. The operator thenraises the hand slide Z7 I), at the front of the machine; which actionwill trip the cam Z1 into driving connection with the constantly runningdriving disk 11 will pull down the retainer cam 0 so as to permit theretainer 0 to move under the action of its tension spring, into itsretaining position, and will lift the assembled line of dies and spacersto a point above the level of the assembling belt. The cam b being thusstarted into motion, will permit the table to turn downward by gravity.\Vhen the roller b of the sector gear cam-lever 19 reaches theconcentric part b on the moving cam b the table will stand still forashort interval,which may be roughly stated to be for about thirtydegrees of the cam shafts movement. Just as the table reaches thepointof pause, the hooked end of the retainer 0 will be engaged by thefixed segmental cam c, rising from the machine frame, and the retainerwill thereby be pulled out from under the pivoted ends of the carriers,which will permit the carriers to swing, on their guides 0 to positionssubstantially at right angles to the assembling belt, and permit the dieends of the same to fall on to the belt, under the action of gravityowing to the position of the table at the time. Immediately after thewithdrawal of the retainer from under the die ends of the carriers, justabove noted, the arm a, on the lifting blade lever 0 will have met andwill be operated upon by the pin 0 of the cam-lever 0 while still on thelow part of the cam Z1 and, under the pivotal motion of the table, thelifting bar 0 will be lifted nearly but not quite to the end of itsdistributing stroke, or substantially into the position shown in Fig.21. Immediately after and nearly simultaneously with the release of thedie carriers from the retainer 0 the roller 0 of the bell-crank lever 00 operatingthe abutment-board c, engages the propeller-cam b"; and thesaid abutment board 0 is, thereby, thrown toward the left, so as to meetthe die ends of the car riers on the assembling belt, while the table isstationary, and co-operates with the idle belt to keep the die carriersfrom vibration at that time. The said abutment-board meets the die endsof the carriers, just as they strike the belt; and the movement of thesaid abutment-board, after having once begun, is continuous from theright toward the left, during about the last one-third of the tablesdownward movement. Just before the abutment board reaches the left handlimit of its travel, so as to bring the die ends of the carriersopposite their respective stalls, the gate lever arm 0 will, under thefurther downward movement of the table, come in contact with the rockerwhich is under the action of the cam I), through the parts 0 and 0 and,thereby, thestall-gate will be thrown into its open position.Simultaneously with the opening movement of the stall-gate 0 the supporta, carrying the releasing catches 0 will be thrown outward by thecam-post 0 meeting the supports arm 0, under the pivotal motion of thetable. Immediately thereafter, the high part of the cam 17 will rock thecam-lever 0 and, through the parts 0 0 0 force the lifting and returningbar 0 to the finallimitof its distributing stroke; and as quick as thehigh part of the cam 12 passes the lever 0 the spring 0 which was setunder tension by the final stroke of the lifting-bar 0 will throw thesaid bar 0 backward on its guides, so as to afford clearance forthesubsequent closing movement of the catches 0 At the time when the tablereaches the limit of its downward travel, the pivoted ends of thecarriers willhave already been thrown into their final distributingpositions on their guides, as above noted; and the lower ends or mouthsof the stalls 0 being open, as above noted, and the abutment boardhaving brought the die ends of the carriers exactly in line with theirrespective stall months, the die ends of the carriers will enter thestalls, under the action of gravity, at the final limit of the tablesmovement, which is slightly beyond the vertical line. The table willthen begin its return or upward movement, under the action of the cam band the sector-gears c and b. As soon as the table starts upward, thestall gate will be closed by its spring and the support 0 will be drawninward by its spring 0 and, by the said movements, the parts 0 and 0will be in position to hold the distributed and all other members of thecarriers 0 in their idle or initial positions. Duringthe return movementof the table, the abutment-boards is returned to the right, into itsnormal position, by the spring 0 Just as the table reaches the limit ofits upward movement, the hooked end of the retainer 0 will engage thecam 0 so as to force the said retainer into its outward position to theright of the line of assembly. Just as the table reaches its upwardlimit, the driving pawl for the cam 17 will also be tripped out ofaction, by the trip-lever b 19 and, thereafter, the said cam Z1 willhold the table stationaryin its horizontal or assembling position. Theoperator must then force the lifting bar 0 to its lowermost position;and all' the parts of the machine will, then, be ready for action at thekey-board, by the operator, for the release and assembling ofthe nextline of dies.

All the statements of facts hereinbefore IIO

